table.styled {
  margin: auto;
  border-top: 1px solid #666;
  border-bottom: 1px solid #666;
}
table.styled thead th { border-bottom: 1px solid #ddd; }
table.styled th, td { padding: 5px; }

table.alternate thead, table.alternate tfoot, table.alternate tr:nth-child(even) { background: #eee; }